CN204122505U - A kind of C type groove row die for continuously extruding - Google Patents

Abstract

The utility model relates to a kind of C type groove row die for continuously extruding, comprise protecgulum, bonnet and core rod, described protecgulum and bonnet close and are connected to form cavity, described core rod is arranged in cavity, described protecgulum center is provided with circular channel, described core rod center is provided with C pattern chamber, and described bonnet center is provided with rectangular channel, described circular channel, C pattern chamber and rectangular channel UNICOM in turn.The exit of circular channel is equipped with cone angle to increase the lateral flow of material, the import department in C pattern chamber and exit are equipped with outside cone angle, interior cone angle is the load effectively reducing C type groove row mid portion, cavity bonnet sets up boss, play and effectively support C type groove row mid portion, thus ensure that C type groove row's is continuously extruded, constant product quality.

Description

A C-shaped groove row continuous extrusion die

technical field

The utility model relates to a die, in particular to a C-shaped groove row continuous extrusion die.

Background technique

C-shaped trough row is an essential material for power transmission in the power transmission and transformation industry. The C-shaped groove row has the characteristics of anti-deformation, energy saving, and optimization of the space of the complete set of switchgear. It is suitable for some occasions that have special cross-sectional shape requirements for conductive materials, and can meet the requirements for the replacement and upgrading of complete sets of switchgear. The traditional C-shaped groove row extrusion method is water seal extrusion after ingot casting, and the dimensional accuracy and surface quality of the extruded products cannot be effectively controlled. However, the general continuous extrusion core is prone to partial fracture when extruding the C-shaped groove row, which cannot be continuously extruded.

Contents of the invention

In order to solve the deficiencies in the prior art, the purpose of this utility model is to provide a C-shaped groove row continuous extrusion die with good production continuity and low groove row fracture rate during the production process.

For achieving above object, the technical scheme that the utility model takes is:

A C-shaped groove row continuous extrusion die, including a front cover, a back cover and a mold core, the front cover and the back cover are closed and connected to form a cavity, the mold core is arranged in the cavity, and the center of the front cover is set There is a circular passage, a C-shaped mold cavity is provided at the center of the mold core, and a rectangular passage is provided at the center of the back cover, and the circular passage, the C-shaped mold cavity and the rectangular passage are connected in sequence.

Further, the outer cone angle at the entrance of the C-shaped channel is 1-10°, the inner cone angle at the entrance of the C-shaped cavity is 10-20°, and the outlet of the C-shaped channel is provided with 1- 5° cone angle.

Further, the circular passage is a stepped hole or a tapered hole whose diameter gradually increases from the entrance to the exit, and the end of the circular passage is provided with a cone angle of 10-20°.

Still further, a boss is provided in the rectangular channel.

After adopting above technical scheme, the beneficial effect of the utility model is:

The outlet of the circular channel is equipped with a cone angle to increase the lateral flow of the material. The entrance and exit of the C-shaped cavity are equipped with an outer cone angle and an inner cone angle to effectively reduce the load on the middle part of the C-shaped groove row. A boss is added on the back cover of the cavity to effectively support the middle part of the C-shaped groove row, thereby ensuring the continuous extrusion of the C-shaped groove row and stable product quality.

Description of drawings

Figure 1 is the front view of the utility model;

Figure 2 is the A-A view of the utility model;

Figure 3 is the B-B view of the utility model;

Figure 4 is an exploded view of the utility model.

In the figure: front cover 1, mold core 2, back cover 3, circular channel 4, C-shaped cavity 5, rectangular channel 6, boss 7, inner cone angle 8, outer cone angle 9, cone angle 10.

Detailed ways

The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings:

As shown in Figures 1 and 4, a C-shaped groove row continuous extrusion die includes a front cover 1, a mold core 2 and a back cover 3, and the front cover 1 and the back cover 3 are molded to form a columnar cavity. The core 2 is fixedly installed in the mold cavity, the center of the front cover 1 is provided with a circular passage 3, the center of the mold core 2 is provided with a C-shaped mold cavity 5, and the center of the rear cover 3 is provided with a rectangular passage 6, and the center of the rectangular passage 6 A boss 7 is arranged on the center line, and the circular channel 4, the C-shaped cavity 5, and the rectangular channel 6 are sequentially connected to form a C-shaped groove row extrusion channel.

As shown in Figures 2 and 3, the circular channel is a stepped channel formed by two-stage cylindrical holes with enlarged diameters, and a taper angle of 10-20° is provided at the contact point between the end of the circular channel and the mold core. The inner side of the entrance of the C-shaped cavity 5 is provided with an inner cone angle 8 of 10-20°, and the outer surface of the entrance of the C-shaped cavity 5 is provided with an outer cone angle 9 of 1-10°. A taper angle 10 of 1-5° is provided on the inner and outer surfaces of the exit of the C-shaped cavity 5, and the boss 7 in the rectangular channel 6 supports the extruded C-shaped groove row.

Claims (4)

1. A C-type groove row continuous extrusion die is characterized in that, comprising a front cover, a back cover and a mold core, the front cover and the back cover are closed and connected to form a cavity, and the mold core is arranged in the cavity, A circular channel is provided at the center of the front cover, a C-shaped cavity is provided at the center of the mold core, and a rectangular channel is provided at the center of the back cover, and the circular channel, the C-shaped cavity and the rectangular channel are connected in sequence. 2. A kind of C-shaped groove row continuous extrusion die according to claim 1, characterized in that, the outer taper angle at the entrance of the C-shaped die cavity is 1-10°, and the angle at the entrance of the C-shaped channel The inner cone angle is 10-20°, and the outlet of the C-shaped channel is provided with a cone angle of 1-5°. 3. A C-shaped groove row continuous extrusion die according to claim 1, characterized in that, the circular passage is a stepped hole or a tapered hole with gradually larger diameter from the entrance to the exit, and the circular passage The end of the shaped channel is provided with a taper angle of 10-20°. 4. A C-shaped groove row continuous extrusion die according to claim 1, wherein a boss is provided in the rectangular channel.